内蒙古电力技术2023，Vol.41Issue(6)：35-42,8.DOI:10.19929/j.cnki.nmgdljs.2023.0082
深度调峰模式下多供热机组协同优化性能分析
Performance Analysis of Cooperative Optimization of Multiple Heating Units Under Deep Peak Regulation Mode
摘要
Abstract
Taking the four heating units of 2×200 MW and 2×350 MW in a power plant in Inner Mongolia as the object,this paper analyzes the effects of three heating technologies,namely zero output of low pressure cylinder,optical shaft and high back pressure transformation on the net benefit and peak regulating performance of the plant from the perspective of plant economy and peak regulating performance.Based on Ebsilon software,the mathematical models of four heating units before and after the transformation are built,and the influences of low-pressure cylinder zero output technology and high back pressure transformation technology on the economic performance and peak regulating performance of a single unit are analyzed.Four kinds of plant level heating methods are put forward,and the economic performance and peak regulating ability of plant level under different heating methods are analyzed.The effects of back pressure,drain temperature and heating pressure on the minimum output load of each unit are studied.The results show that when the heat load is the same,the minimum output of low pressure cylinder can be reduced by 33 MW,and the minimum output of high back pressure can be reduced by 80 MW.After the heat supply transformation of four units(cutting cylinder transformation of Unit 1 and 3,optical shaft transformation of Unit 2,high back pressure transformation of Unit 4),the plant depth peak regulating ability is optimal.When the plant heating load is lower than 1000 MW,the operation economy of the four units is the best after heating transformation.When the heating load is higher than 1000 MW,the operation economy of the four units is the best according to the original pumping heating load.Heating pressure has the greatest influence on the peak regulating performance of each unit.关键词
供热机组/低压缸零出力/高背压/深度调峰Key words
heating unit/low pressure cylinder zero output/high back pressure/depth peaking分类
信息技术与安全科学引用本文复制引用
范志强,张洁,魏超,张利慧,杨彦平..深度调峰模式下多供热机组协同优化性能分析[J].内蒙古电力技术,2023,41(6):35-42,8.基金项目
内蒙古电力(集团)有限责任公司科技项目"内蒙古电网供热机组调峰能力分析及软件开发"(2022-25) （集团）
